H2O2/CxHy propellant. Glushko developed a series of engines between 1965 and 1975 burning hydrogen peroxide and an unspecified hydrocarbon fuel dubbed CxHy (perhaps 'Sintin'). No flight engines resulted.
Subtopics
RD-510 Glushko H2O2/CxHy rocket engine. Developed 1965-75. First flight 1975.
RD-510T Glushko H2O2/CxHy rocket engine. Developed 1965-75. First flight 1975.
RD-511 Glushko H2O2/CxHy rocket engine. Developed 1965-75. First flight 1975.